WorksheetsFOSS Planetary Science Investigations 6 & 7 Test
Total questions: 26
Worksheet time: 13mins
What is Earth's closest star?
Sun
Proxima Centauri
Sirius
Betelgeuse
What type of star is the Sun?
high mass star
average mass star
low mass star
black hole
The Sun will eventually turn into a supernova and form a black hole.
true
false
The distance from the Earth to the Sun is 93 million miles which is
1 light year (ly)
1 astronomical unit (1AU)
2 astronomical units (2AU)
1 light years (2ly)
When astronomers measure distances outside our solar system, they use the measurement
astronomical units
light years
light speed
astronomical meters
Galaxies are categorized by their shape. What shape is the Milky Way galaxy?
elliptical
spiral
irregular
oval
Most galaxies rotate around a central core which would be
a massive star
a nebula
a supermassive black hole
an exoplanet
The star, Proxima Centauri, is 4 light years away from Earth. How long does it take for its light to reach us?
4 years
40 years
400 years
4,000 years
All stars begin in a cloud of gas and dust known as a
disk
accretion
nebula
Oort Cloud
All stars will eventually run out of material and nuclear fusion will stop.
true
false
All stars that explode will turn into a black hole.
true
false
What does the image represent?
life cycle of galaxies
life cycle of stars
life cycle of Oort Cloud
life cycle of universe
Most scientists agree that the solar system formed with events that started with a nebula of dust gases-hydrogen and helium.
true
false
Most scientists agree that during the formation of the solar system, substances orbiting the Sun went through a period of _______, when tiny particles came together and continued to form larger objects.
condensing
accretion
contracting
evaporating
Which of the following rocky planet does not have an atmosphere?
Mercury
Mars
Venus
Earth
What theory do most astronomers agree with as to how the Moon formed around Earth?
Sister theory
Big Impact theory
Capture theory
Daughter theory
Which of the following is the largest gas planet?
Jupiter
Neptune
Saturn
Uranus
Larger particles and objects have more mass and more gravitational attraction.
true
false
Scientists have been looking for evidence of liquid water on other planets and moons. What factor is important scientists to consider when looking for water?
atmosphere gases
surface temperature
active or extinct volcanoes
rings around planets
When humans use solar, geothermal, or wind power, we burn less fossil fuels which is better for the environment. These energy sources that are better for the environment are
renewable
nonrewable
smartable
fossil fuels
Which planet is most like Earth?
Mercury
Venus
Mars
Pluto
Where is water not found in the solar system?
Venus
Mars
Europa (Jupiter's moon)
Triton (Saturn's moon)
Humans are the only species that change the biosphere in Earth's systems.
true
false
Changes in Earth's biosphere always have a negative impact on the planet.
true
false
As humans live longer, our population is
rapidly increasing
rapidly decreasing
stabilizing
slowly increasing
Humans are changing Earth and its resource so much that some scientists think we entered a new geologic age called
modern era
newpocene
anthropocene
greenhouse era
